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The interaction between medical burden and anticholinergic cognitive burden on neuropsychological function in a
Cady K Block1, Erin Logue1, Nicholas S Thaler2
1Department of Psychiatry and Behavioral Sciences, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73126-0901, USA.
Abstract:
Poorer neuropsychological function is associated with increased medical burden (MB) and the use of more anticholinergic medications. However, the interaction between MB and anticholinergic cognitive burden (AB) on neuropsychological performance is unknown. In a sample of 290 elderly primary care patients, those with a greater level of AB demonstrated poorer Total Index performance on the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Further, an interaction effect was noted such that there was a greater anticholinergic effect on RBANS Total, Attention, and Delayed Memory Index scores for participants with fewer MB. Participants with more MB demonstrated poorer performance irrespective of their level of AB. These results indicate that MB effects may be overshadowed by anticholinergic effects in older patients.
Insights
Higher anticholinergic burden (AB) worsens cognitive function in older adults. Medical burden (MB) impacts cognition, but its effects are less pronounced than AB, especially in those with lower MB.
Area of Science:
- Gerontology
- Neuropsychology
- Clinical Pharmacy
Background:
- Poorer neuropsychological function is linked to increased medical burden (MB) and anticholinergic medication use.
- The interplay between MB and anticholinergic cognitive burden (AB) on cognitive performance remains unclear.
Purpose of the Study:
- To investigate the combined effects of MB and AB on neuropsychological performance in elderly primary care patients.
Main Methods:
- Assessed 290 elderly primary care patients.
- Utilized the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) to measure cognitive function.
- Examined the relationship between MB, AB, and cognitive outcomes.
Main Results:
- Greater AB was associated with poorer overall cognitive performance (RBANS Total Index).
- An interaction effect showed that anticholinergic effects were more pronounced on attention and memory in patients with lower MB.
- Patients with higher MB performed poorly regardless of their AB level.
Conclusions:
- Medical burden may mask the cognitive impact of anticholinergic burden in some older adults.
- Anticholinergic effects appear to significantly impair cognitive function, particularly attention and memory, in elderly individuals.
- Clinical attention to anticholinergic medication use is crucial for preserving cognitive health in aging populations.
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